Apache Camel: pollEnrich does not call dynamic URI - apache-camel

Question

I have a route to poll the email from the server. In the FunctionRoute I am trying to pass the subject of the email I want to fetch by the IMAP protocol using pollEnrich method in the EmailPollingRoute. Currently I am facing problem to make a dynamic URI endpoint. I noticed the headers are being cleared before calling the pollEnrich method. Therefore I tried to use the ${exchangeProperty.subject} but there is no email is fetched. When I set the subject directly in the endpoint as String then the email is being fetched.
How can I set the subject dynamically in the pollEnrich method? The subject is being passed from the FunctionRoute to EmailPollingRoute route.
I appreciate any help
#Component
public class FunctionRoute extends EmailPollingRoute {
static final Logger LOGGER = LoggerFactory.getLogger(FunctionRoute.class);
#Override
public void configure() throws Exception {
from("direct:process_polling_email_function")
.process(new Processor() {
#Override
public void process(Exchange exchange) throws Exception {
subject = "ABCD - Test1";
exchange.setProperty("ABCD - Test1");
LOGGER.info("1. subject - " + subject);
}})
//.setProperty("subject", constant("ABCD - Test1"))
//.setHeader("subject", simple("ABCD - Test1"))
.to("direct:process_polling_email");
}
}
#Component
public class EmailPollingRoute extends BaseRouteBuilder {
static final Logger LOGGER = LoggerFactory.getLogger(EmailPollingRoute.class);
public String subject;
#Override
public void configure() throws Exception {
//super.configure();
//2362
//#formatter:off
from("direct:process_polling_email")
.routeId("routeId_EmailPollingRoute")
.process(new Processor() {
#Override
public void process(Exchange exchange) throws Exception {
subject = exchange.getProperty("subject", String.class);
LOGGER.info("0001 - subjectB: (" + subject + ")");
}})
.pollEnrich("imaps://XXXXXXX.info"
+ "?username=XXXXX&"
+ "password=XXXXXXX&"
+"folderName=Inbox/Test&"
+"searchTerm.fromSentDate=now-72h&"
+"searchTerm.subject=${exchangeProperty.subject}&"
+"fetchSize=1");
.to("log:newmail");
//#formatter:on
}
}

Answer 1

You can set pollEnrich URI dynamically using simple method, you can also specify timeout in similar way.
.pollEnrich()
.simple("imaps://XXXXXXX.info"
+ "?username=XXXXX&"
+ "password=XXXXXXX&"
+"folderName=Inbox/Test&"
+"searchTerm.fromSentDate=now-72h&"
+"searchTerm.subject=${exchangeProperty.subject}&"
+"fetchSize=1")
.timeout(1000);